<?php

 
trait uuu{
   
    public function  abc(){
     echo "uuuu->ABC\n";
 }
}
trait kkk{
  
    
    public function  abc(){
        echo "kkk->ABC\n";
    }
}
class ccc{
  use uuu,kkk{
    //用uuu::abc
        uuu::abc()
     }   
}
 $bb=new ccc();
 $bb->abc();
 